Three hundred and forty five convicted patients with tuberculosis underwent sociohygienic examinations. Among the examinees, the disease was first detected in 74.2% in a reformatory, in 25.8% in an investigating cell. The persons who fell ill with tuberculosis in places of confinement were mainly young, their ages ranged from 20 to 39 years. Only every 4 patients with tuberculosis are condemned for the first time, more than half the patients have over 3 convictions and every 5 patients have over 5 convictions. The most socially disadapted individuals fall ill with tuberculosis in the reformatory; among the examinees, 7.6% were homeless before conviction. The overwhelming majority of the convicts had no social contacts: 52.2% were never married. The study ascertained that in addition to the negative social environment, some criminogenic, personal, and behavioral factors of this contingent predispose to tuberculosis.